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Finding the Fourth Proportional to 8,515.26, 11,747.63 and 5,369.63

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Solution

The fourth proportional to 8,515.26, 11,747.63 and 5,369.63 is: 7,407.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,515.26 : 11,747.63 = 5,369.63 : x
  2. Step 2: Convert to fraction form
    8,515.26/11,747.63 = 5,369.63/x
  3. Step 3: Cross multiply
    8,515.26x = 11,747.63 × 5,369.63
  4. Step 4: Simplify right side
    8,515.26x = 63,080,381.16
  5. Step 5: Solve for x
    x = 63,080,381.16/8,515.26
  6. Step 6: Final answer
    x = 7,407.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.